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---
title: delay_qubits (v0.29)
description: API reference for qiskit.pulse.builder.delay_qubits in qiskit v0.29
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.pulse.builder.delay_qubits
---
<span id="qiskit-pulse-builder-delay-qubits" />
# qiskit.pulse.builder.delay\_qubits
<Function id="qiskit.pulse.builder.delay_qubits" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.18/qiskit/pulse/builder.py" signature="delay_qubits(duration, *qubits)">
Insert delays on all of the `channels.Channel`s that correspond to the input `qubits` at the same time.
Examples:
```python
from qiskit import pulse
from qiskit.test.mock import FakeOpenPulse3Q
backend = FakeOpenPulse3Q()
with pulse.build(backend) as pulse_prog:
# Delay for 100 cycles on qubits 0, 1 and 2.
regs = pulse.delay_qubits(100, 0, 1, 2)
```
<Admonition title="Note" type="note">
Requires the active builder context to have a backend set.
</Admonition>
**Parameters**
* **duration** (`int`) Duration to delay for.
* **qubits** (`Union`\[`int`, `Iterable`\[`int`]]) Physical qubits to delay on. Delays will be inserted based on the channels returned by `pulse.qubit_channels()`.
</Function>